a luminous springtime fairytale of beautiful realistic mermaids frolicking together among octopuses and fish and coral and seahorses in the romantic underwater baroque kingdom of neptune. neon light, masterpiece 4k digital illustration by ruan jia and mandy jurgens and william-adolphe bouguereau, award winning, artstation, gustave dore' background, intricate details, realistic, panoramic view, volumetric lighting, sun rays beaming, hyperdetailed, 8k resolution, golden hour, intricate art nouveau, smooth, sharp focus, rendered in unreal engine 3